Fastening device for lamp-doors.



a w. T. JONES. f FASTENING DEVICE FOELAMP DOORS.

APPLICATION FILED AUG. 14, 1911.

Batent'ed Dec. 12, 1911.

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WILLIAM T. JONES, F DETROIT, MICHIGAN, ASSIGNOR TO THE EDMUNDS & JONES MFG.CO., OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

FASTENIG DEVICE FOB, LAMP-DOORS.

Loinaoc.

Speccation of Letters latent.

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Applicatie/n filed August 14, 1911. Serial No. 643,866,

i citizen of the United States, residing at Detroit, in the county of Wayne, State of .Michigam have invented certain new and useful Improvements in Fastening Devices for Lamp-Doors; and I do declare the following to be a full, clear, and exact descrip tion of the invent-ion, such as will enable others skilled in the art 'to which it appertains to make and use the same, reference `being had to the accompanying drawings,

and to the characters of reference marked thereon, which form a part of this specification.

This invention relates to a fastening device for lamp doors especially designed for use upon vehicle lamps, and consist-s in the construction and arrangement of parts hereinafter more fully set forth and claimed.

The object of the invention is to provide simple and efficient means for fastening a lamp door closed in such manner as to enable the door to be held withV tension against rattling, and wherein the arrangement is such as .to enable the fastening device to be readily manipulated, either to release the door when is desired to open it,

or to 4fasten the door closed, provision being made for removing from the face of the door and from the front portion of the lamp body all projecting parts. The above objectis attained by the structure illustrated in the accompanying drawings, in which Figure 1 is a View. of a lamp partly in horizontal section showing my fastening means holding the lamp door closed. Fig. 2 is a fragment-ary view in section showing the position of parts when the door is released and partly swung open. Fig. 3 is a similar view showing the initial engagement of the spring fastener with the door in the operation of drawing the door to the closed position.

ner wall of the lamp and projecting for wardly beyond the juncture of the flaring portion 2 with the main body of the lamp is a strip 3 of flexible material, preferably spring metal. The shape of the flexible strip 3` is such that its free end stands away from the curved wall of the flaring front portion 2 of the lamp, and mounted upon the free end of said fieXible strip is a hookl shaped catch 4 which is of such length as to project beyond the door opening. As shown herein said catch is formed of a piece of metal folded vupon itself and bent to the proper shape, the sides thereof embracing the free end of the flexible strip 3. Passing through said catch and said fieXible strip and securely riveted therein is a threadedA bolt 5, the outer end of which passes freely through an opening in the Haring wall 2 of the lamp body. Threaded on thel projecting outer end of said bolt is a knurled nut 6 having a socket 7 therein which freely receives the enlarged head 8 of said bolt.

The depth of said socket is suiiicient to fully receive the head of said bolt and allow the springcatch 4, carried by the bolt, to spring inwardly such distance as to release the door when the nut is screwed outwardly on the bolt to the position shown ink Fig. 2L Said head, however, arrests farther outward movement of the nut, thereby preventing the nut being removed from the bolt. l

The door 9 is hinged at 10'to the front of the lamp and carries the usual glass or lens 11. Formed in the inner facing strip 12 of the door frame is an opening 13 which serves as a keeper into which the curved or hooked outer end of the catch 4 may engage, when, by the manipulation of the nut 6 the bolt 5 is drawn outwardly so as to carry said catch into said opening, and hold the door closed as shown in Fig. 1. During this operation the flexible character of the strip 3 carrying the catch will yield sufficiently to allow said catch to bedrawn into the keeper of the door frame, the resistance olfered by said resilient or flexible spring being sufficient to place a strain upon the bolt 5, which after the nut has been screwed onto the bolt to fasten the door closed will prevent the accidental turning of the nut on the bolt and obviate the fastening becoming sufficiently loose to -allow the door to rattle. The flexible or spring strip 3 in its normal position stands away from the wall of the flaring portion of the lamp body, whereby,lwhen the nut 6 is unscrewed upon the bolt 5 the tension of said strip will draw the bolt inwardly and allow thecatch to swing out of the keeper or recess i3 in the door frame as shown in Fig. 2, thereby releasing the door and allowing it to swing open. After the free end or" the catch Il has been engaged in the recess or keeper 13 in the door frame, the drawing outwardly of the bolt 5 by the turning of the nut 6 will cause said catch to gradually enter said keeper and force the door to the closed position, in which position the door is tightly held by the nut 6 which exerts a strong outward strain upon the bolt 5.

It will now be apparent that by means of this fastening device a lamp door'nay be firmly held in the closed position against the possibility of rattling and quickly released when desired, the arrangement removing all projecting parts from the door and from the rim of the front portion of the lamp body, the nut 6 being disposed behind the wall of the daring portion 2 so that it is neither unsightly nor in the Way.

Having thus fully set forth my invention, what I-claim a's new and desire to secure by Letters Patent, is

A lamp door fastener, comprising a ieXible member mounted on the wall of the lamp body, a catch upon the projecting free end of said member, a door frame having a keeper adapted to receive said catch, a bolt connected with said flexible member passing through the wall of the lamp, and means for actuating said bolt to draw said catch into the keeper of the door frame.

In testimony whereof, I sign this specification in the presence of two Witnesses.

WILLIAM T. JONES. Witnesses:

J. S. CRANDELL, MARIE BROESAMLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofPatents, Washington, D. 

